Finding the Fourth Proportional to 206,940.24, 285,305.16 and 135,195.60
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Solution
The fourth proportional to 206,940.24, 285,305.16 and 135,195.60 is: 186,391.99
Step by Step Solution
- Step 1: Write the proportion equation
206,940.24 : 285,305.16 = 135,195.60 : x - Step 2: Convert to fraction form
206,940.24/285,305.16 = 135,195.60/x - Step 3: Cross multiply
206,940.24x = 285,305.16 × 135,195.60 - Step 4: Simplify right side
206,940.24x = 38,572,002,289.30 - Step 5: Solve for x
x = 38,572,002,289.30/206,940.24 - Step 6: Final answer
x = 186,391.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.